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Finding the Fourth Proportional to 275,633.24, 380,377.86 and 154,800.68

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Solution

The fourth proportional to 275,633.24, 380,377.86 and 154,800.68 is: 213,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,633.24 : 380,377.86 = 154,800.68 : x
  2. Step 2: Convert to fraction form
    275,633.24/380,377.86 = 154,800.68/x
  3. Step 3: Cross multiply
    275,633.24x = 380,377.86 × 154,800.68
  4. Step 4: Simplify right side
    275,633.24x = 58,882,751,384.94
  5. Step 5: Solve for x
    x = 58,882,751,384.94/275,633.24
  6. Step 6: Final answer
    x = 213,627.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.